This gist creates releases for fog/fog based on the changelog.txt file. You will need to supply a username and a personal access token.

release_task.rb

require 'singleton'
require 'octokit'

class ReleaseNotesGenerator
  include Singleton
  
  def release_header?
    release_match != nil
  end
  
  def release_match
    @current_line.match(/(\d+\.\d+\.\d+)\s+\d{2}\/\d{2}\/\d{4}\s+([0-9a-f]+)/)
  end

  def skip_header_lines
    2.times { @file.readline }
  end

  def print_release
    # puts "+" * 50
    puts @release
    # puts "+" * 50
    # puts "The is space is blank\n"
    exit
  end
  
  def github
    @client ||= Octokit::Client.new \
      :login => USER_NAME
      :password => API_KEYk
  end
  
  def add_release
    github.create_release "fog/fog", "v#{@release_tag}", {:name => "v#{@release_tag}", :body => @release}
    puts "creating release #{@release_tag}"
  end
  
  def set_release_vars
    @header = @current_line
    @release_tag = release_match[1]
    @release_hash = release_match[2]
  end
  
  def section_header?
    @current_line.match(/\[[^\]]+\]/) != nil
  end
  
  def inside_release_details?
    @inside_release_details
  end
  
  def format_section_header    
    if section_header?
      @current_line = "#### #{@current_line}"
    end
  end
  
  def line_blank?
    @current_line.match(/[^\s]/).nil?
  end
  
  def bullet_item
    if inside_release_details? && !section_header?
      @current_line = "* #{@current_line}" unless line_blank? 
    end
  end
  
  def strip_at_signs
    @current_line.gsub! /(@[^\s]+)/, '`\1`'
  end
  
  def italicize_thanks
    @current_line.gsub! /(thanks .*$)/, '*\1*'  
  end

  def format_line
    format_section_header
    bullet_item
    strip_at_signs
    italicize_thanks      
  end
  
  def reset_variables
    @release = ""
    @inside_release_details = false
  end


  def parse(file_name)
    File.open(file_name) do |file|
      @file = file
      @release = nil
      @releases = []
  
      file.each_line do |line|
        @current_line = line
        if release_header?
          add_release if @release

          # print_release if @release
          set_release_vars
          skip_header_lines
          reset_variables
        else          
           @inside_release_details ||= section_header?
          format_line
          @release << @current_line
        end
    
      end
    end
  end
end


ReleaseNotesGenerator.instance.parse 'changelog.txt'